Well it's noisy, and there's little fine detail left. There's not a lot more you can say really. The ISO 1600 image has very strong chroma noise, which gives all shadow areas a blue-ish sheen. Again, you could argue that the noise has an almost 'film like' grain to it, particularly the ISO 800 result, but ultimately it's still just lots of noise. Very much for emergency use (or very small prints) only.